Made it through the first turn of the SOPAC scenario (which is Turn 3 of the campaign game).

I’m pretty good with the Offensives Phase of the Sequence of Play.  Did have a major revelation, though.  Apparently any movement of a unit is considered an Offensive, and the destination is declared a Battle Hex.  So, my movement of two air units to a different base in Australia (see map screenshot below) results in that destination being declared a Battle Hex, with the possibility of the opponent making a Reaction Move if opposing units are within range.

Will have to do some research over at Boardgamegeek to confirm/deny this interpretation.

In any event, the Allies have landed at Guadalcanal, reinforced the initial landing, as well as moving units to New Guinea in preparation for an offensive out of Port Moresby.  The Japanese attempt to defeat the initial Guadalcanal landings with air and naval forces out of Rabaul was turned back with losses on both sides.

Any Japanese efforts during this initial turn are limited as the bulk of the Combined Fleet is in home waters, and not available until the following turn.  The Allies will also receive significant naval reinforcements during Turn 4.  Should be interesting.

Here’s a Vassal screen shot for the end of Turn 3.  The Area of Operations (AO) is outlined in the bottom right corner.